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初中物理第一册130页图11—4描绘了“瓶吞鸡蛋”的实验,该实验证实大气压强的存在非常生动、形象.我们在该实验图示的基础上对实验所用的器材及实验的过程作了一些改进,以便更加增强实验效果. 书中图示的实验只有在鸡蛋的大小与广口瓶瓶口的尺寸配合得当时才能达到明显的实验效果,因而在选择鸡蛋时还需花一番功夫.我们改用鹌鹑蛋来代替鸡蛋,用250毫升的长颈烧瓶来代替广口瓶,由于鹌鹑蛋大小相差不大,煮熟后蛋白质软而易挤压,一般去壳鹌鹑蛋都能与长颈烧瓶口径恰当配合,而且由于长颈烧瓶颈部较长,延长了蛋吞入瓶内过程、提高了演示
The experiment of the “bottle swallowing eggs” is shown in Fig. 11-4 of the first volume of the junior high school physics book. The experiment confirms that the existence of atmospheric pressure is very vivid and vivid. Based on the illustration of the experiment, we use the equipment for the experiment and The experimental process has been improved to enhance the experimental results. The experiment shown in the book can only achieve obvious experimental results when the size of the egg is matched with the size of the mouth of a wide-mouth bottle. Therefore, it is necessary to select an egg. Spend a lot of effort. We use quail eggs instead of eggs, use a 250-ml flask to replace the wide-mouthed bottle, because the size of quail eggs is not much difference, cooked protein soft and easy to squeeze, generally shelled quail eggs Both can fit properly with the caliber of the neck flask, and because the neck of the neck flask is longer, the process of egg swallowing inside the bottle is extended, and the demonstration is improved.